e51c53f366
LibYAML is a YAML 1.1 parser and emitter under MIT license which will soon be used by the pkg boostrap (usr.bin/pkg) and bhyve Reviewed by: roberto, antoine
312 lines
10 KiB
C
312 lines
10 KiB
C
#include <yaml.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#ifdef NDEBUG
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#undef NDEBUG
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#endif
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#include <assert.h>
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#define BUFFER_SIZE 65536
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#define MAX_DOCUMENTS 16
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int copy_document(yaml_document_t *document_to, yaml_document_t *document_from)
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{
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yaml_node_t *node;
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yaml_node_item_t *item;
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yaml_node_pair_t *pair;
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if (!yaml_document_initialize(document_to, document_from->version_directive,
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document_from->tag_directives.start,
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document_from->tag_directives.end,
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document_from->start_implicit, document_from->end_implicit))
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return 0;
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for (node = document_from->nodes.start;
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node < document_from->nodes.top; node ++) {
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switch (node->type) {
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case YAML_SCALAR_NODE:
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if (!yaml_document_add_scalar(document_to, node->tag,
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node->data.scalar.value, node->data.scalar.length,
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node->data.scalar.style)) goto error;
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break;
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case YAML_SEQUENCE_NODE:
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if (!yaml_document_add_sequence(document_to, node->tag,
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node->data.sequence.style)) goto error;
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break;
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case YAML_MAPPING_NODE:
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if (!yaml_document_add_mapping(document_to, node->tag,
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node->data.mapping.style)) goto error;
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break;
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default:
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assert(0);
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break;
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}
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}
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for (node = document_from->nodes.start;
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node < document_from->nodes.top; node ++) {
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switch (node->type) {
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case YAML_SEQUENCE_NODE:
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for (item = node->data.sequence.items.start;
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item < node->data.sequence.items.top; item ++) {
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if (!yaml_document_append_sequence_item(document_to,
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node - document_from->nodes.start + 1,
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*item)) goto error;
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}
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break;
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case YAML_MAPPING_NODE:
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for (pair = node->data.mapping.pairs.start;
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pair < node->data.mapping.pairs.top; pair ++) {
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if (!yaml_document_append_mapping_pair(document_to,
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node - document_from->nodes.start + 1,
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pair->key, pair->value)) goto error;
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}
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break;
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default:
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break;
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}
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}
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return 1;
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error:
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yaml_document_delete(document_to);
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return 0;
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}
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int compare_nodes(yaml_document_t *document1, int index1,
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yaml_document_t *document2, int index2)
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{
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yaml_node_t *node1 = yaml_document_get_node(document1, index1);
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yaml_node_t *node2 = yaml_document_get_node(document2, index2);
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int k;
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assert(node1);
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assert(node2);
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if (node1->type != node2->type)
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return 0;
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if (strcmp((char *)node1->tag, (char *)node2->tag) != 0) return 0;
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switch (node1->type) {
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case YAML_SCALAR_NODE:
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if (node1->data.scalar.length != node2->data.scalar.length)
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return 0;
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if (strncmp((char *)node1->data.scalar.value, (char *)node2->data.scalar.value,
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node1->data.scalar.length) != 0) return 0;
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break;
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case YAML_SEQUENCE_NODE:
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if ((node1->data.sequence.items.top - node1->data.sequence.items.start) !=
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(node2->data.sequence.items.top - node2->data.sequence.items.start))
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return 0;
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for (k = 0; k < (node1->data.sequence.items.top - node1->data.sequence.items.start); k ++) {
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if (!compare_nodes(document1, node1->data.sequence.items.start[k],
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document2, node2->data.sequence.items.start[k])) return 0;
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}
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break;
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case YAML_MAPPING_NODE:
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if ((node1->data.mapping.pairs.top - node1->data.mapping.pairs.start) !=
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(node2->data.mapping.pairs.top - node2->data.mapping.pairs.start))
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return 0;
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for (k = 0; k < (node1->data.mapping.pairs.top - node1->data.mapping.pairs.start); k ++) {
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if (!compare_nodes(document1, node1->data.mapping.pairs.start[k].key,
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document2, node2->data.mapping.pairs.start[k].key)) return 0;
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if (!compare_nodes(document1, node1->data.mapping.pairs.start[k].value,
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document2, node2->data.mapping.pairs.start[k].value)) return 0;
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}
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break;
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default:
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assert(0);
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break;
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}
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return 1;
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}
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int compare_documents(yaml_document_t *document1, yaml_document_t *document2)
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{
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int k;
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if ((document1->version_directive && !document2->version_directive)
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|| (!document1->version_directive && document2->version_directive)
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|| (document1->version_directive && document2->version_directive
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&& (document1->version_directive->major != document2->version_directive->major
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|| document1->version_directive->minor != document2->version_directive->minor)))
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return 0;
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if ((document1->tag_directives.end - document1->tag_directives.start) !=
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(document2->tag_directives.end - document2->tag_directives.start))
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return 0;
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for (k = 0; k < (document1->tag_directives.end - document1->tag_directives.start); k ++) {
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if ((strcmp((char *)document1->tag_directives.start[k].handle,
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(char *)document2->tag_directives.start[k].handle) != 0)
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|| (strcmp((char *)document1->tag_directives.start[k].prefix,
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(char *)document2->tag_directives.start[k].prefix) != 0))
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return 0;
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}
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if ((document1->nodes.top - document1->nodes.start) !=
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(document2->nodes.top - document2->nodes.start))
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return 0;
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if (document1->nodes.top != document1->nodes.start) {
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if (!compare_nodes(document1, 1, document2, 1))
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return 0;
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}
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return 1;
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}
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int print_output(char *name, unsigned char *buffer, size_t size, int count)
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{
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FILE *file;
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char data[BUFFER_SIZE];
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size_t data_size = 1;
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size_t total_size = 0;
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if (count >= 0) {
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printf("FAILED (at the document #%d)\nSOURCE:\n", count+1);
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}
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file = fopen(name, "rb");
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assert(file);
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while (data_size > 0) {
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data_size = fread(data, 1, BUFFER_SIZE, file);
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assert(!ferror(file));
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if (!data_size) break;
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assert(fwrite(data, 1, data_size, stdout) == data_size);
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total_size += data_size;
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if (feof(file)) break;
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}
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fclose(file);
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printf("#### (length: %d)\n", total_size);
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printf("OUTPUT:\n%s#### (length: %d)\n", buffer, size);
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return 0;
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}
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int
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main(int argc, char *argv[])
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{
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int number;
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int canonical = 0;
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int unicode = 0;
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number = 1;
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while (number < argc) {
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if (strcmp(argv[number], "-c") == 0) {
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canonical = 1;
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}
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else if (strcmp(argv[number], "-u") == 0) {
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unicode = 1;
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}
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else if (argv[number][0] == '-') {
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printf("Unknown option: '%s'\n", argv[number]);
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return 0;
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}
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if (argv[number][0] == '-') {
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if (number < argc-1) {
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memmove(argv+number, argv+number+1, (argc-number-1)*sizeof(char *));
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}
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argc --;
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}
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else {
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number ++;
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}
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}
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if (argc < 2) {
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printf("Usage: %s [-c] [-u] file1.yaml ...\n", argv[0]);
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return 0;
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}
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for (number = 1; number < argc; number ++)
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{
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FILE *file;
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yaml_parser_t parser;
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yaml_emitter_t emitter;
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yaml_document_t document;
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unsigned char buffer[BUFFER_SIZE];
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size_t written = 0;
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yaml_document_t documents[MAX_DOCUMENTS];
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size_t document_number = 0;
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int done = 0;
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int count = 0;
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int error = 0;
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int k;
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memset(buffer, 0, BUFFER_SIZE);
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memset(documents, 0, MAX_DOCUMENTS*sizeof(yaml_document_t));
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printf("[%d] Loading, dumping, and loading again '%s': ", number, argv[number]);
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fflush(stdout);
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file = fopen(argv[number], "rb");
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assert(file);
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assert(yaml_parser_initialize(&parser));
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yaml_parser_set_input_file(&parser, file);
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assert(yaml_emitter_initialize(&emitter));
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if (canonical) {
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yaml_emitter_set_canonical(&emitter, 1);
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}
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if (unicode) {
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yaml_emitter_set_unicode(&emitter, 1);
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}
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yaml_emitter_set_output_string(&emitter, buffer, BUFFER_SIZE, &written);
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yaml_emitter_open(&emitter);
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while (!done)
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{
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if (!yaml_parser_load(&parser, &document)) {
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error = 1;
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break;
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}
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done = (!yaml_document_get_root_node(&document));
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if (!done) {
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assert(document_number < MAX_DOCUMENTS);
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assert(copy_document(&(documents[document_number++]), &document));
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assert(yaml_emitter_dump(&emitter, &document) ||
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(yaml_emitter_flush(&emitter) && print_output(argv[number], buffer, written, count)));
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count ++;
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}
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else {
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yaml_document_delete(&document);
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}
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}
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yaml_parser_delete(&parser);
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assert(!fclose(file));
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yaml_emitter_close(&emitter);
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yaml_emitter_delete(&emitter);
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if (!error)
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{
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count = done = 0;
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assert(yaml_parser_initialize(&parser));
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yaml_parser_set_input_string(&parser, buffer, written);
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while (!done)
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{
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assert(yaml_parser_load(&parser, &document) || print_output(argv[number], buffer, written, count));
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done = (!yaml_document_get_root_node(&document));
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if (!done) {
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assert(compare_documents(documents+count, &document) || print_output(argv[number], buffer, written, count));
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count ++;
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}
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yaml_document_delete(&document);
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}
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yaml_parser_delete(&parser);
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}
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for (k = 0; k < document_number; k ++) {
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yaml_document_delete(documents+k);
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}
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printf("PASSED (length: %d)\n", written);
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print_output(argv[number], buffer, written, -1);
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}
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return 0;
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}
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